3.3. Grease production from biogas residue by BSFL
Lignocelluloses were partially digested to the monomeric sugars
by pretreatment and converted into biogas by anaerobic digestion
(Petersson et al., 2007), and it still retained substrates in
biogas residue, such as a small amount of residual sugar from lignocellulose.
Then the BSFL was contributed to energy recycling by
feeding on biogas residue. In this study, 500 BSFL (0.0016 g, individual
weight) were inoculated into the biogas residue which
was obtained from the fermentation of corncob described above
in Section 3.2. After 8 days conversion, about 62.24 g BSFL